Engelhart has no problem with his children, the oldest of whom is 7, buying the things they want. His desire is simply that it be a considered choice. “It’s changed the conversation around spending,” he said. “Buying stuff is great but not buying stuff is also great, because you have the benefit of growing the money. So when they get a birthday check, their first instinct now isn’t necessarily to go out and buy something. They may decide to put the money in the bank as quickly as possible so they definitely don’t miss a Sunday.”